Yegorov was born in a peasant family and graduated from the Frunze Higher Naval School in 1936.

At the start of Operation Barbarossa, Yegorov was a Senior Lieutenant and navigating officer of a Shchuka-class submarine, SCH-310.

In 1942 this submarine managed to break through into the central Baltic from its base in Leningrad and sink a German transport ship.

On returning to base the boat hit a mine and grounded 60 metres (197 ft) underwater.

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